MTGS

Set to 2 different clues across 2 published puzzles, most often “Chairmen often call them: Abbr.” — The New York Times, Saturday, 23 January 2010.

4 letters

Every clue on record, most used first

Chairmen often call them: Abbr.once
The New York Times — Saturday, 23 January 2010
Board events: Abbr.once
The New York Times — Sunday, 29 July 2007